Internal-combustion engine.



W. P. RUBLE, INTERNAL- COMBUSTION ENGINE.

APPLIGATION FILED JUNE 16, 1914. I

Patented Sept. 22, 1914.

3 SHEETS-SHEET l.

- W. P. RUBLB.

INTERNAL COMBUSTION ENGINE. APPLI-GAI'ION FILED JUNE 16, 1914. v

Patented Sept. 22, 19141 3 SHEETS-SHEET 2.

W. PJRUBLB INTERNAL COMBUSTION ENGINE. APPLIOATION FILED JUNE 16, 1914. "1,1 1 1 1 83, Patented Sept. 22, I914v WILLIAM P. RUBLE, F ESMOND, NORTH DAKOTA.

INTERNAL-COMBUSTION ENGINE.

To all whom it may concern it known that I5 HVVILLIAM P. Bosnia, a citizen ofthe United States residing 1n Esnrond, in the county of Benson and State of North Dakota, have invented certain new and useful Improvements in Internal-Combus'tion' Engines of which the following a specification.-

This inventionrelates to internal combus' tion engines of the class in which oil and air are mixed; in explosive proportions and fired in the working cylinder of the engine,

and the object of my invention is to provide an engine of this type in which explosions are effected at opposite ends, of the engine at the endofeach stroke so that the piston is positively driven in opposite directions as in double acting reciprocating steam engines of ordinary construction.

invention consists in novel valve mechanism for accomplishing these purposes and in new organizations of instrument'alities and improved details of construction which will be hereinafter specified. In carrying out my invention I employ a working cylinder and a piston of ordinary construction and} I provide. this cylinder with' admission and exhaust ports which are controlled by novel valve mechanism oper'ating in an improved way. The air admission ports at opposite'ends of the cylinder are controlled by oscillating cylin' drical' valves which cooperate with a horizontally arranged block which is supported by the cylindrical valves and is reciprocated in' themain valve chest when the cylindrica'l valves are oscillated. This block is formed with recesses at its opposite ends which receive ribs, cogs, or teeth on the cylindrical valves and through the teeth ex- "tend channels which connect with the interior of the cylindrical valves which are hollow. -Mixing chambers are provided within the valves for oily and air-and valve mechanism is provided for controlling the admission of' oil to the mixing chambers and'for regulating the passage of the mixcure to the working cylinder. Novel admission and exhaust valves are also provided which are properly timed and operated to control the admission and the exhaust of the products of combustion after each ex-- pl'esion.

In the accompanying drawings, Figure 1 is a view partly in side elevation'and partly in'section' on the'line 1 '1 of Fig. 3 of an I been illustrated Specification of Letters Patent. Patented Sept, 22 1914 Application filed June 16, 1914. Serial No. 845,460.

the interior mechanism. Fig. 3 shows a transverse section on the line :of Fig. 1. Fig. 4 shows a local section on the} line 41-4= of Fig. 3. Fig. 5 is a detailview on an enlarged scale and in section ofuone of the needle valves controlling the admission of oil to the mixing chambers.

The workingcylinder A= and the piston B with its rod B may be of any suitable construction. No attempt has been made to show the details of construction. of the piston nor has any way Of-COQllIlg the cylinder I as these form no part of my invention The. working cylinder is provided at opposite ends with heads 0, O,- and' above the cylinder there is a casing- D .tcr certain valve mechanism hereinafter described. The heads C, O are made in sections c,- c as shown, and these heads are chambered to receive the valve mechanism for controlling the admission and exhaust for the purpose of obtaining access to the interior thereof.

The casing D is provided with an air chest E to which compressed air is admitted at opposite ends through the intake pipes e, compressed air'being'supplied by pumps which deliver to the air chest at a pressure of preferably about one hundredpounds. v I

In the air chest is arranged a valve block F which'is given a short reclprocatory move ment in the manner hereinafter described.

This block cooperates with two hollow cylin-' drical valves G and H which are mounted 1 in recesses g, it of the casing D and are].

supported by roller bearings comprising frames 2' and spaced rollers 2''. Each of the valves G, H, is formed with a rib, cog ortooth g, h which is curved orconvex-as shown and adaptedto fit a corresponding recess 9 k in theadjacent-end ofthe valve block E which latter is held down in engagement with the cylindrical valves by a spring pressed plate J and' a roller J. An

air passage m leads from the outside of. each: tooth g or k to the interior ofthe hollow cylindrical valve and each .valve is. formed with a hollow cylindrical. extension GQH of relatively small diameter and which-pro.

' cillation.

vides a mixing chamber for oil and air. Each mixing chamber is'provided with an inlet port m for oil and an outlet port m for the explosive mixture. These ports are provided with valve mechanism presently described. The extension G or H of each valve G or H oscillates in packed bearings M .(Fig. 3) and the opposite end of each ,valve is provided with an arm M extendsite ends of the engine and the admission of oil vto-the mixing chambers H, G is 'controlled by valve devices of the kind shown in Fig. 5. -Each extension G or H has a lug 3 extending from it formed with a passage y communicating with the port m through which the oil is admitted. This passage is controlled by a needle valve, the stem 7) of which reciprocates in a channel p in the casing and this stem is provided at its outer end with a head 32 which reciprocates in a chamber go in which is housed a spring pi, one end of which bears against the head 77 and the other-engages a screw plug 79 When the valve H or G is in one position, such as shown at the right hand side of Fig. 4, the channel 3 is closed by the needle valve and the'spring p is put under compression. When the valve turns 'in an opposite direction the needle valve at first follows the lug y and keeps the channel y closed, but after the valve has turned to a suflicient extent the head 19 abuts against Y the end of the chamber 17, the lugly leaves the needle valve and the channel y is opened for a short time or for a sufficient ti 1'ne to.

permit the entrance of a proper amount of oil to the mixing chamber. The oil is preferably supplied to the oil chest in such manner that it Will stand to the level shown in Fig. 3. When filling the oil chest the air pressure should be withdrawn until the oil has risen to the proper height.

The explosive mixture passes through the ports m to chambers Q communicating with the working cylinder and the passage of the mixture to the working cylinder and the exhaust of products of combustion the-refrom are re ulated by the valve mechanism shown most clearly in Figs. 1 and 3.

' Each extension G, H is provided with an arm R connected with a valve rod R on which are arranged conical valves S, S.

The valves S control the admission ports t,

and the valves S control the exhaust ports" The valve S rests on a nut 1' at the lower end of the rod R and above the valve S the rod R carries another nut 9". The two conical valves S, S at eachend of the engine are pressed apart by a spring S which tends to hold the valve S in contact with the nut r and the valve S in contact with the nut r. These valves are provided with correspondingly shaped valve seats and the arrangement is such that when the rod R is depressed the nut 1" bears upon the top of the valve S and the port t is opened in the manner shown in Fig. 1 at the left hand side. 'At this time the valve is seated and closes the exhaust port t, said valve being held to its seat by the spring S hen the rod R" rises the valve S is held its seat by spring pressure in the manner indicated at the right hand side of Fig. 1. Sparking plugs or igniters of any suitable kind may be employed as indicated at T in Fig. 1.

In order to control the passage of the explosive mixture from the mixing chambers,

I employ valve devicesof the kind shown in;v

site ends of the engine indicated-in Fig. 1.- The exhaust opemngs t communicate with exhaust pipes 25 while the air inlet and oil inlet pipes may be connected with any suitable sources of supply regulated in any desired manner.

The engine operates in the following manner: It being. assumed that oil, such as gasolene, has been supplied to the oil chest and that air is admitted to the air chest under the requisite pressure, a reciprocating m0- ticn is imparted to the rod N and through the connection before described an oscillating movement is given to the valves G and H. Inasmuch as the valve block F rests on the valves G and H in-the manner before described, reciprocating movement will be given to said valve block. This reciprocating movement is quite short but the movement is also such that the block rises and falls alternately at opposite ends.

Referring to Fig. l, the parts are shown in such position that air will pass from the air chest E through the channel at at the left hand end of the engine and proceed into the mixmg chamber G where it meets .oil admitted by the needle valve 7:). At this time the opposite end of the block or that shown at the right hand side,-Fig. 2, closes the passage on. When the valves are moved in the opposite direction, the right hand end of the block will rise slightly and will uncover the port a; and air will be admitted to the valve at the right hand side,-Fig. 2. In

this Way air is alternately admitted at the opposite ends of the engine and oil is alternately admitted to the mixing chamber by; the needle valves before described. As the nected that the valves open and close at the proper time and the igniters are, of course, so actuated as to ignite the explosive mixture at the required intervals. In this way the engine is made to operate in a manner similar to a double acting steam engine, the piston being positively actuated by the expansion of gases at the end of each stroke of each reciprocation. The valve mechanism employed is such that leakages are prevented and the danger of explosion of the fuel in the fuel or oil chest is very remote. While I prefer to employ gasolene as a kinds of fuel may be used.

I claim as my invention:

'1. In an internal combustion engine, the combination with a working cylinder and an air chest, of-cylindrical valves controlling ports connecting the working cylinder with the air chest, roller bearings in which said valves are mounted, a reciprocating block supported by and connected with the valves and controlling the ports therein communicating with the working cylinder, and means for oscillating said valves.

2. The combination with a working cylinder and an air chest, of cylindrical valves at opposite ends of the cylinder controlling the passage of air from the airchest, roller hearings in which said valves are mounted, a reciprocating block supported by the valves and moving therewith as they oscillate and which opens and closes communica- I tion between the interior of said valves and the air chest, and means for oscillating the valves.

3. The combination with a Working cylinder and an air chest, of hollow cylindrical valves interposed between the cylinder and the chest and eachof which is provided with a tooth on its exterior having a passage communicating with the interior of the valve, a reciprocating block in the air chest having recessed opposite, ends connecting with the teeth of the valves and controlling the entrance of air thereto, and

means for oscillating the valves.

4. Thecombination with a working cylfuel, other inder and an air chest, of two hollow cylindrical valves interposed between the cylinder and the chest and each of which is provided with a tooth on its exterior having a passage communicating with the interior of the valve, a reciprocating block in the air chest resting on the cylindrical valves and having recessed opposite ends connecting with the teeth of the valves adapted to close the entrance for air thereto and to separate from the teeth and thus open communication between the interior of the valves and the air chest. I

5. The combination with a working cylinder,-of an air chest, an oil supply, oscillating valves interposed between the air chest and the working cylinder, mixing chambers'in said valves for oil and air, means for controlling the admission of air and oil to the mixing chambers, means for controlling the passage of the mixture from the mixing chambers and valves connected with and operated by the oscillating valves for controlling admission and exhaust to and from the working cylinder.

6. An internal combustion engine, comprising a working cylinder, an air chest, an oil reservoir, oscillating valves interposed between the air chest and the Working cylinder, mixing chambers in communication with said valves and receiving air therefrom, means for controlling the entrance of oil to the mixing chambers, means for controlling the passage of the explosive mixture therefrom and valves connected with and operated by said oscillating valves for controlling admission and exhaust to' and from the working cylinder.

7 An internal combustion engine comprising a working cylinder, an air chest, an

oil reservoir, hollow cylindrical valves interposed'between the air chest and the working cylinder and controlling-the passage of air from the air chest, mixing chambers receiving regulatedquantities of air from the air chest, valves controlling the admission of oil to the mixing chambers, valves controlling the passage of the explosive mixture from said mixing chambers, and valves connected with and operated by said first mentioned valves controlling admission and exhaust to and from the Working cylinder.

8. In an internal combustion engine, the combination of a working cylinder, an air chest, oscillating valves interposed between the working cylinder and the air chest and which are provided with hollow extensions providing mixing chambers to which air is admitted by said valves, channeled lugs projecting from said extensions, spring pressed needle valves for opening and closing said channels to control the admission. of oil to the mixing chambers, valves controlling the passage of explosive mixture from the mixing chambers, and valve mechanism controlling admission and exhaust to and from the working cylinder.

9. An internal combustion engine, comprising a Working cylinder, an air chest, oscillating valves interposed between the working cylinder and the air chest, mixing chambers to which air is admitted by said valves means for controlling-the admission of oil to said mixing chambers, valves controlling the passage of the explosive mixture from said mixing chambers, and valves at each end of the working cylinder for controlling admission and exhaust, said admission and exhaust valves at each end of the cylinder being of conical shape operating in conical valve seats and being yieldingly pressed apart by a spring for the purpose specified. '1

10. An internal combustion engine, comprising a working cylinder, an air chest, an oil reservoir, oscillating hollow cylindrical WILLIAM P. RUBLE.

Witnesses WILLIAM DYSART,

' E. O. CRAIG.

Copies of this patent may be obtained for 'five cents each, by addressing the Commissioner of Patents,

' Washington, D. 0. i 

